Representation of an Armillary sphere, a model of objects in the sky (in the celestial sphere), consisting of a spherical framework of rings, centred on Earth or the Sun, that represent lines of celestial longitude and latitude and other astronomically important features such as the ecliptic. As such, it differs from a celestial globe, which is a smooth sphere whose principal purpose is to map the constellations. It was invented separately in ancient Greece and ancient China, with later use in the Islamic world and Medieval Europe.
The history of western astrology can be traced back to pre-Christian times in Babylonia or Mesopotamia and Egypt. Its basic principles of interpretation and calculation, which are still recognizable today, were learned by astrology in the Hellenistic Greek-Egyptian city of Alexandria. Astronomy emerged from it as meaningless observation and mathematical recording of the starry sky, and it remained associated with it for a long time as an auxiliary science. Astrology had an eventful history in Europe. After the elevation of Christianity to the state religion in the Roman Empire, it was partly fought, partly adapted to Christianity and temporarily pushed aside. In the course of the early Middle Ages, astrology, especially the learned astronomy-astrology, revived in the Byzantine Empire from around the late 8th century, as also somewhat later in the Muslim Al-Andalus on the Iberian Peninsula. From the later High Middle Ages and especially in the Renaissance to the 17th century, it was widely regarded as a science in Europe, always combined with astronomy in the quadrivium of the seven liberal arts that had been taught at universities. In the course of the Enlightenment, however, it lost its plausibility in educated circles.
|Dimensions (cm)||15,5 x 14|
|Condition||Perfectly restored tear in the upper middle, small missing part added.|
( A reproduction can be ordered individually on request. )